https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Placental adaptations in growth restriction https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26912 Wed 11 Apr 2018 10:53:25 AEST ]]> Birth and neonatal transition in the guinea pig: experimental approaches to prevent preterm birth and protect the premature fetus https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35228 in utero. This allows adverse intrauterine conditions to make a sustained impact on the developing brain like in compromised human pregnancies. In addition, the brain is exposed to a protective neurosteroid environment in utero, which has been suggested to promote development in the guinea pig and the human. Moreover, in utero stresses that have been shown to adversely affect long term neurobehavioral outcomes in clinical studies, can be modeled successfully in guinea pigs. Overall, these parallels to the human have led to increasing interest in the guinea pig for translational studies of treatments and therapies that potentially improve outcomes following adverse events in pregnancy and after preterm birth.]]> Tue 02 Jul 2019 11:37:43 AEST ]]> The effect of placental restriction on insulin signaling and lipogenic pathways in omental adipose tissue in the postnatal lamb https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19578 n = 9, 5 males, 4 females) and Control (n = 14, 8 males, 6 females) neonatal lambs at 21 days of age. The mRNA expression of the insulin signaling molecules, AMP-kinase (AMPK) and adipogenic/lipogenic genes was determined by qRT-PCR, and protein abundance by Western Blotting. AMPKα2 mRNA expression was increased in male IUGR lambs (0.015 ± 0.002 v. 0.0075 ± 0.0009, P < 0.001). The proportion of the AMPK pool that was phosphorylated (%P-AMPK) was lower in IUGR lambs compared with Controls independent of sex (39 ± 9% v. 100 ± 18%, P < 0.001). The mRNA expression and protein abundance of insulin signaling proteins and adipogenic/lipogenic genes was not different between groups. Thus, IUGR is associated with sex-specific alterations in the mRNA expression of AMPKα2 and a reduction in the percentage of the total AMPK pool that is phosphorylated in the omental adipose tissue of neonatal lambs, before the onset of visceral obesity. These molecular changes would be expected to promote lipid accumulation in the omental adipose depot and may therefore contribute to the onset of visceral adiposity in IUGR animals later in life.]]> Sat 24 Mar 2018 07:58:20 AEDT ]]> Impact of inter-pregnancy BMI change on perinatal outcomes: a retrospective cohort study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:29323 4500 g). Results: On average, women with a normal BMI gained 1 kg/m² between first and second pregnancies, while women who were overweight or obese gained 1.37 kg/m². Among women with a normal BMI in their first pregnancy, a BMI increase of ≥4 kg/m² was associated with increased risk of developing GDM (aRR 1.97; 95% CI 1.22–3.19), a macrosomic (aRR 4.06; 95% CI 2.25–7.34) or LGA infant (aRR 1.31 0.96–1.78) in the second pregnancy, while a reduction in BMI (≤–2 kg/m²) was associated with an increased risk of SGA (aRR 1.94; 1.19–3.16). Among women who were overweight or obese in their first pregnancy, a BMI increase of ≥2–4 and ≥4 kg/m² was associated with increased risks of developing GDM in the second pregnancy (aRR 1.39; 95% CI 1.01–1.91 and aRR 1.64 95% CI 1.16–2.31; Ptrend< 0.001), while no associations were observed for a BMI increase and risk of a macrosomic, SGA, or LGA infant. In contrast, reduction in BMI (≤–2 kg/m²) was associated with a reduced risk of GDM (aRR 0.58 95% CI 0.37–0.90) and SGA (aRR 0.47; 95% CI 0.25–0.87). Conclusion: Increases in BMI between pregnancies is associated with an increased risk for perinatal complications, even in normal-weight women, while a reduction in BMI is associated with improved perinatal outcomes among women who are overweight/obese. Inter-pregnancy weight control is an important target to reduce the risk of an adverse perinatal outcome in a subsequent pregnancy.]]> Sat 24 Mar 2018 07:34:20 AEDT ]]> Sotos syndrome: an unusual presentation with intrauterine growth restriction, generalized lymphedema, and intention tremor https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30056 Sat 24 Mar 2018 07:31:15 AEDT ]]>